Cisco SPA2102 - RTP Parameters Section

ATA Voice Field Reference
SIP page
Cisco Small Business ATA Administration Guide 127
B
RTP Parameters section
SIT4 RSC SIP response status code to INVITE on which to play the
SIT4 Tone.
Try Backup RSC SIP response code that retries a backup server for the
current request.
Retry Reg RSC Interval to wait before the ATA device retries registration
after failing during the last registration.
The default is 30.
RTP Port Min Minimum port number for RTP transmission and reception.
The
and parameters should
define a range that contains at least 4 even number ports,
such as 100  106.
The default is 16384.
RTP Port Max Maximum port number for RTP transmission and reception.
The default is 16482.
RTP Packet Size Packet size in seconds, which can range from 0.01 to 0.16.
Valid values must be a multiple of 0.01 seconds.
The default is 0.030.
Max RTP ICMP Err Number of successive ICMP errors allowed when
transmitting RTP packets to the peer before the ATA
device terminates the call. If value is set to 0, the ATA
device ignores the limit on ICMP errors.
The default is 0.